Calcium silicon alloy is a composite alloy composed of elemental silicon, calcium and iron. It is an ideal compound deoxidizer and desulphurizer. It is widely used in the production of high quality steel, low carbon steel, stainless steel and special alloys such as nickel base alloy, titanium base alloy, etc. It can also be used as inoculant of cast iron and additive in production of ductile iron. The steel industry accounts for about 90 percent of global consumption of calcium silicon.